Paint spray gun



FIG. 1 is a front perspective view of a paint spray gun showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a rear perspective view thereof. 

CLAIM The ornamental design for a paint spray gun, as shown and described. 